See /lib/modules/./kernel/drivers/watchdog in the kernel package for a list of choices. " softdog" is the most generic driver, but it is recommended that you use one with actual hardware integration.Inside a Xen VM (aka DomU) " xen_wdt" is a good choice.Inside a VM on z/VM on an IBM mainframe " vmwatchdog" might be used.For systems with an Intel TCO " iTCO_wdt" can be used.ĭell, Fujitsu, and Lenovo usually fall into this category.On HP hardware the " hpwdt" module should work.The right watchdog module has to be determined.Ĭurrently there is no stable programmatic approach to determine the right watchdog kernel module in any case. Such software has to be disabled if the watchdog needs to be used by the SBD that comes with SLE-HA. Some hardware vendors ship systems management software that use the watchdog for system resets. Please note, that only one software must access the watchdog timer. In order to automate loading of the right watchdog module,it has to be included into the boot process.The right watchdog module has to be loaded.Any wrong watchdog module has to be unloaded.The right watchdog module has to be determined.In order to enable loading of the right watchdog kernel module on boot, the following steps could be performed: As result, lots of modules are already loaded before the right one gets a chance.Ī proven solution is to load the proper watchdog driver very early during system boot, before the auto-probing takes place. This causes automatic probing to fail very often. Finding out the right kernel module for a given system is not exactly trivial.
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